source: pst/printing/cups.xml

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1<?xml version="1.0" encoding="UTF-8"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6
7 <!ENTITY cups-download-http "https://github.com/OpenPrinting/cups/releases/download/v&cups-version;/cups-&cups-version;-source.tar.gz">
8 <!ENTITY cups-download-ftp " ">
9 <!ENTITY cups-md5sum "e0a5ddbf53dfad41da26fc1ef60b2256">
10 <!ENTITY cups-size "7.8 MB">
11 <!ENTITY cups-buildsize "77 MB (Add 49 MB for tests)">
12 <!ENTITY cups-time "0.4 SBU (Add 1.0 SBU for tests)">
13]>
14
15<sect1 id="cups" xreflabel="Cups-&cups-version;">
16 <?dbhtml filename="cups.html"?>
17
18
19 <title>Cups-&cups-version;</title>
20
21 <indexterm zone="cups">
22 <primary sortas="a-Cups">Cups</primary>
23 </indexterm>
24
25 <sect2 role="package">
26 <title>Introduction to Cups</title>
27
28 <para>
29 The Common Unix Printing System (CUPS) is a print spooler and
30 associated utilities. It is based on the "Internet Printing
31 Protocol" and provides printing services to most PostScript
32 and raster printers.
33 </para>
34
35 &lfs121_checked;
36
37 <bridgehead renderas="sect3">Package Information</bridgehead>
38 <itemizedlist spacing="compact">
39 <listitem>
40 <para>
41 Download (HTTP): <ulink url="&cups-download-http;"/>
42 </para>
43 </listitem>
44 <listitem>
45 <para>
46 Download (FTP): <ulink url="&cups-download-ftp;"/>
47 </para>
48 </listitem>
49 <listitem>
50 <para>
51 Download MD5 sum: &cups-md5sum;
52 </para>
53 </listitem>
54 <listitem>
55 <para>
56 Download size: &cups-size;
57 </para>
58 </listitem>
59 <listitem>
60 <para>
61 Estimated disk space required: &cups-buildsize;
62 </para>
63 </listitem>
64 <listitem>
65 <para>
66 Estimated build time: &cups-time;
67 </para>
68 </listitem>
69 </itemizedlist>
70
71 <bridgehead renderas="sect3">Cups Dependencies</bridgehead>
72
73 <bridgehead renderas="sect4">Required</bridgehead>
74 <para role="required">
75 <xref linkend="gnutls"/>
76 </para>
77
78 <bridgehead renderas="sect4">Recommended</bridgehead>
79 <para role="recommended">
80 <xref linkend="colord"/>,
81 <xref linkend="dbus"/>,
82 <xref linkend="libusb"/>,
83 <xref linkend="linux-pam"/>, and
84 <xref linkend="xdg-utils"/>
85 </para>
86
87 <bridgehead renderas="sect4">Optional</bridgehead>
88 <para role="optional">
89 <xref linkend="avahi"/>,
90 <xref linkend="libpaper"/>,
91 <xref linkend="mitkrb"/>,
92 <!--<xref linkend="openjdk"/>, Not found in 2.4.0 -->
93 <xref linkend="php"/>, and
94 <xref linkend="python2"/>
95 </para>
96
97 <bridgehead renderas="sect4">Required (Postinstall)</bridgehead>
98 <para role="required">
99 <xref role="runtime" linkend="cups-filters"/>
100 </para>
101
102 <bridgehead renderas="sect4">Optional (Postinstall)</bridgehead>
103 <para role="optional">
104 <xref role="runtime" linkend="gutenprint"/> and
105 <ulink role="runtime" url="https://developers.hp.com/hp-linux-imaging-and-printing">hplip</ulink> (HP printers)
106 </para>
107
108 </sect2>
109
110 <sect2 role="kernel" id="cups-kernel">
111 <title>Kernel Configuration</title>
112
113 <note>
114 <para>
115 There used to be a conflict between the <application>Cups</application>
116 <application>libusb</application> backend and the usblp kernel driver.
117 This is no longer the case and cups will work with both of these
118 enabled.
119 </para>
120 </note>
121
122 <para>
123 If you want to use the kernel usblp driver (for example, if you wish to
124 use <application>escputil</application> from <xref
125 linkend="gutenprint"/>) enable the following options in your kernel
126 configuration and recompile the kernel:
127 </para>
128
129 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
130 href="usb-printer-kernel.xml"/>
131
132 <para>
133 If you have a parallel printer, enable the following options in your
134 kernel configuration and recompile the kernel:
135 </para>
136
137 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
138 href="parallel-printer-kernel.xml"/>
139
140 <indexterm zone="cups cups-kernel">
141 <primary sortas="d-cups">cups</primary>
142 </indexterm>
143
144 </sect2>
145
146 <sect2 role="installation">
147 <title>Installation of Cups</title>
148
149 <para>
150 You will need to add an <systemitem class="username">lp</systemitem>
151 user, as <application>Cups</application> will create some files owned
152 by this user. (The <systemitem class="username">lp</systemitem> user
153 is the default used by <application>Cups</application>, but may be
154 changed to a different user by passing a parameter to the
155 <command>configure</command> script.) Use the following command as
156 the <systemitem class="username">root</systemitem> user:
157 </para>
158
159<screen role="root"><userinput>useradd -c "Print Service User" -d /var/spool/cups -g lp -s /bin/false -u 9 lp</userinput></screen>
160
161 <para>
162 You will also need a dedicated group that will contain users allowed to
163 do <application>Cups</application> administrative tasks. Add the group
164 by running the following command as the
165 <systemitem class="username">root</systemitem> user:
166 </para>
167
168<screen role="root"><userinput>groupadd -g 19 lpadmin</userinput></screen>
169
170 <para>
171 If you want to add a user to the <application>Cups</application>
172 administrative group, run the following command as the
173 <systemitem class="username">root</systemitem> user:
174 </para>
175
176<screen role="root"><userinput>usermod -a -G lpadmin <replaceable>&lt;username&gt;</replaceable></userinput></screen>
177
178 <para>
179 If you didn't install <xref linkend="xdg-utils"/>, use the following
180 <command>sed</command> to change the default browser that will be used
181 to access the <application>Cups</application> web interface:
182 </para>
183
184<screen><userinput>sed -i 's#@CUPS_HTMLVIEW@#firefox#' desktop/cups.desktop.in</userinput></screen>
185
186 <para>
187 Replace <command>firefox</command> with the web browser of your
188 choice.
189 </para>
190
191 <para>
192 Build <application>Cups</application> by running the following commands:
193 </para>
194
195<screen revision="sysv"><userinput>./configure --libdir=/usr/lib \
196 --disable-systemd \
197 --with-rcdir=/tmp/cupsinit \
198 --with-rundir=/run/cups \
199 --with-system-groups=lpadmin \
200 --with-docdir=/usr/share/cups/doc-&cups-version; &amp;&amp;
201make</userinput></screen>
202
203<screen revision="systemd"><userinput>./configure --libdir=/usr/lib \
204 --with-rundir=/run/cups \
205 --with-system-groups=lpadmin \
206 --with-docdir=/usr/share/cups/doc-&cups-version; &amp;&amp;
207make</userinput></screen>
208
209 <para>
210 To test the results, issue: <command>LC_ALL=C make -k check</command>. An already
211 active graphical session with bus address is necessary to run the tests.
212 Make sure that there is not other instance of <application>Cups</application>
213 running, otherwise at least 4 tests will fail with "address in use".
214 </para>
215
216 <para>
217 Now, as the <systemitem class="username">root</systemitem> user:
218 </para>
219
220<!-- dev note: make BUILDROOT=<DESTDIR> install -->
221
222<screen role="root"><userinput>make install &amp;&amp;
223ln -svnf ../cups/doc-&cups-version; /usr/share/doc/cups-&cups-version;</userinput></screen>
224
225 <para revision="sysv">
226 Remove the shipped bootscript, which is incompatible with LFS:
227 </para>
228
229<screen role="root" revision="sysv"><userinput>rm -rf /tmp/cupsinit</userinput></screen>
230
231 <para>
232 Create a basic <application>Cups</application> client configuration file
233 by running the following command as the <systemitem
234 class="username">root</systemitem> user:
235 </para>
236
237<screen role="root"><userinput>echo "ServerName /run/cups/cups.sock" > /etc/cups/client.conf</userinput></screen>
238
239 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
240 href="../../xincludes/gtk-update-icon-cache.xml"/>
241
242 </sect2>
243
244 <sect2 role="commands">
245 <title>Command Explanations</title>
246
247 <para revision="sysv">
248 <parameter>--disable-systemd</parameter>: Systemd is not supported by
249 this version of BLFS.
250 </para>
251
252 <para revision="sysv">
253 <parameter>--with-rcdir=/tmp/cupsinit</parameter>: This switch tells the
254 build process to install the shipped bootscript into <filename
255 class="directory">/tmp</filename> instead of <filename
256 class="directory">/etc/rc.d</filename>.
257 </para>
258
259 <para>
260 <parameter>--with-rundir=/run/cups</parameter>: This switch prevents
261 the package from referring to the deprecated
262 <filename class='directory'>/var/run</filename> directory.
263 </para>
264
265 <para>
266 <parameter>--with-system-groups=lpadmin</parameter>: This switch ensures
267 that only <systemitem class="groupname">lpadmin</systemitem> will be used
268 as the <application>Cups</application> administrative group.
269 </para>
270
271 <para>
272 <option>--disable-libusb</option>: Use this switch if you have installed
273 <xref linkend="libusb"/>, but wish to use the kernel usblp driver.
274 </para>
275
276 <para>
277 <option>--enable-libpaper</option>: Use this switch if you have installed
278 <application>libpaper</application> and wish to use it with
279 <application>Cups</application>.
280 </para>
281
282 </sect2>
283
284 <sect2 role="configuration">
285 <title>Configuring Cups</title>
286
287 <sect3 id="cups-config">
288 <title>Config Files</title>
289
290 <para>
291 <filename>/etc/cups/*</filename>
292 </para>
293
294 <indexterm zone="cups cups-config">
295 <primary sortas="e-etc-cups">/etc/cups/*</primary>
296 </indexterm>
297
298 </sect3>
299
300 <sect3>
301 <title>Configuration Information</title>
302
303 <para>
304 Normally, printers are set up via a web browser. The
305 <application>Cups</application> server will normally connect via
306 the url http://localhost:631. From there printers, print
307 jobs, and the server configuration can be set up and managed.
308 Remote system administration can also be set up. Configuration
309 can also be done from the command line via the
310 <command>lpadmin</command>, <command>lpoptions</command>,
311 and <command>lpstat</command> commands.
312 </para>
313
314 <para>
315 Configuration of <application>Cups</application> is dependent on
316 the type of printer and can be complex. Generally, PostScript printers
317 are easier. For detailed instructions on configuration and use of
318 <application>Cups</application>, see <ulink
319 url="https://www.cups.org/documentation.html"/>.
320 </para>
321
322 <para>
323 For non-PostScript printers to print with
324 <application>Cups</application>, you need to install <xref
325 linkend="gs"/> to convert PostScript to raster images and a driver
326 (e.g. from <xref linkend="gutenprint"/>) to convert the resulting
327 raster images to a form that the printer understands. <ulink
328 url="https://wiki.linuxfoundation.org/openprinting/database/foomatic">Foomatic</ulink>
329 drivers use <xref linkend="gs"/> to convert PostScript to a printable
330 form directly, but this is considered suboptimal by
331 <application>Cups</application> developers.
332 </para>
333
334 </sect3>
335
336 <sect3>
337 <title>Linux PAM Configuration</title>
338
339 <para>
340 If <application>CUPS</application> has been built with
341 <application>Linux PAM</application> support, you need to create a
342 <application>PAM</application> configuration file to get it working
343 correctly with BLFS.
344 </para>
345
346 <para>
347 Issue the following command as the <systemitem
348 class="username">root</systemitem> user to create the configuration
349 file for <application>Linux PAM</application>:
350 </para>
351
352<screen role="root"><userinput>cat &gt; /etc/pam.d/cups &lt;&lt; "EOF"
353<literal># Begin /etc/pam.d/cups
354
355auth include system-auth
356account include system-account
357session include system-session
358
359# End /etc/pam.d/cups</literal>
360EOF</userinput></screen>
361
362 </sect3>
363
364 <sect3 id="cups-init">
365 <title><phrase revision="sysv">Boot Script</phrase>
366 <phrase revision="systemd">Systemd Unit</phrase></title>
367
368 <para revision="sysv">
369 If you want the <application>Cups</application> print service to start
370 automatically when the system is booted, install the init script
371 included in the <xref linkend="bootscripts"/> package:
372 </para>
373
374 <para revision="systemd">
375 To start the <command>cupsd</command> daemon when something tries to
376 access it, enable the previously installed systemd units by running
377 the following command as the
378 <systemitem class="username">root</systemitem> user:
379 </para>
380
381 <indexterm zone="cups cups-init">
382 <primary sortas="f-cups">cups</primary>
383 </indexterm>
384
385<screen role="root" revision="sysv"><userinput>make install-cups</userinput></screen>
386
387<screen role="root" revision="systemd"><userinput>systemctl enable cups</userinput></screen>
388
389 </sect3>
390
391 </sect2>
392
393 <sect2 role="content">
394 <title>Contents</title>
395
396 <segmentedlist>
397 <segtitle>Installed Programs</segtitle>
398 <segtitle>Installed Libraries</segtitle>
399 <segtitle>Installed Directories</segtitle>
400
401 <seglistitem>
402 <seg>
403 cancel, cupsaccept, cups-config, cupsctl, cupsd, cupsdisable,
404 cupsenable, cupsfilter, cupsreject, cupstestppd, ippeveprinter,
405 ippfind, ipptool, lp, lpadmin, lpc, lpinfo, lpmove, lpoptions, lpq,
406 lpr, lprm, lpstat, ppdc, ppdhtml, ppdi, ppdmerge, and ppdpo
407 </seg>
408 <seg>
409 libcupsimage.so
410 and libcups.so
411 </seg>
412 <seg>
413 /etc/cups,
414 /usr/{include,lib,share}/cups,
415 /usr/share/doc/cups-&cups-version;,
416 /run/cups, and
417 /var/{cache,log,spool}/cups
418 </seg>
419 </seglistitem>
420 </segmentedlist>
421
422 <variablelist>
423 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
424 <?dbfo list-presentation="list"?>
425 <?dbhtml list-presentation="table"?>
426
427 <varlistentry id="cancel-cups">
428 <term><command>cancel</command></term>
429 <listitem>
430 <para>
431 cancels existing print jobs from the print queues
432 </para>
433 <indexterm zone="cups cancel-cups">
434 <primary sortas="b-cancel">cancel</primary>
435 </indexterm>
436 </listitem>
437 </varlistentry>
438
439 <varlistentry id="cupsaccept">
440 <term><command>cupsaccept</command></term>
441 <listitem>
442 <para>
443 accept jobs sent to a destination
444 </para>
445 <indexterm zone="cups cupsaccept">
446 <primary sortas="b-cupsaccept">cupsaccept</primary>
447 </indexterm>
448 </listitem>
449 </varlistentry>
450
451 <varlistentry id="cups-config-prog">
452 <term><command>cups-config</command></term>
453 <listitem>
454 <para>
455 is a <application>Cups</application>
456 program configuration utility
457 </para>
458 <indexterm zone="cups cups-config-prog">
459 <primary sortas="b-cups-config">cups-config</primary>
460 </indexterm>
461 </listitem>
462 </varlistentry>
463
464 <varlistentry id="cupsctl">
465 <term><command>cupsctl</command></term>
466 <listitem>
467 <para>
468 updates or queries the cupsd.conf file for a server
469 </para>
470 <indexterm zone="cups cupsctl">
471 <primary sortas="b-cupsctl">cupsctl</primary>
472 </indexterm>
473 </listitem>
474 </varlistentry>
475
476 <varlistentry id="cupsd">
477 <term><command>cupsd</command></term>
478 <listitem>
479 <para>
480 is the scheduler for the Common Unix Printing System
481 </para>
482 <indexterm zone="cups cupsd">
483 <primary sortas="b-cupsd">cupsd</primary>
484 </indexterm>
485 </listitem>
486 </varlistentry>
487
488 <varlistentry id="cupsdisable">
489 <term><command>cupsdisable</command></term>
490 <listitem>
491 <para>
492 stop printers and classes
493 </para>
494 <indexterm zone="cups cupsdisable">
495 <primary sortas="b-cupsdisable">cupsdisable</primary>
496 </indexterm>
497 </listitem>
498 </varlistentry>
499
500 <varlistentry id="cupsenable">
501 <term><command>cupsenable</command></term>
502 <listitem>
503 <para>
504 start printers and classes
505 </para>
506 <indexterm zone="cups cupsenable">
507 <primary sortas="b-cupsenable">cupsenable</primary>
508 </indexterm>
509 </listitem>
510 </varlistentry>
511
512 <varlistentry id="cupsfilter">
513 <term><command>cupsfilter</command></term>
514 <listitem>
515 <para>
516 is a front-end to the <application>Cups</application>
517 filter subsystem which allows you to convert a file
518 to a specific format
519 </para>
520 <indexterm zone="cups cupsfilter">
521 <primary sortas="b-cupsfilter">cupsfilter</primary>
522 </indexterm>
523 </listitem>
524 </varlistentry>
525
526 <varlistentry id="cupsreject">
527 <term><command>cupsreject</command></term>
528 <listitem>
529 <para>
530 reject jobs sent to a destination
531 </para>
532 <indexterm zone="cups cupsreject">
533 <primary sortas="b-cupsreject">cupsreject</primary>
534 </indexterm>
535 </listitem>
536 </varlistentry>
537
538 <varlistentry id="cupstestppd">
539 <term><command>cupstestppd</command></term>
540 <listitem>
541 <para>
542 tests the conformance of PPD files
543 </para>
544 <indexterm zone="cups cupstestppd">
545 <primary sortas="b-cupstestppd">cupstestppd</primary>
546 </indexterm>
547 </listitem>
548 </varlistentry>
549
550 <varlistentry id="ippeveprinter">
551 <term><command>ippeveprinter</command></term>
552 <listitem>
553 <para>
554 is an IPP Everywhere printer for CUPS
555 </para>
556 <indexterm zone="cups ippeveprinter">
557 <primary sortas="b-ippeveprinter">ippeveprinter</primary>
558 </indexterm>
559 </listitem>
560 </varlistentry>
561
562 <varlistentry id="ippfind">
563 <term><command>ippfind</command></term>
564 <listitem>
565 <para>
566 finds Internet Printing Protocol printers
567 </para>
568 <indexterm zone="cups ippfind">
569 <primary sortas="b-ippfind">ippfind</primary>
570 </indexterm>
571 </listitem>
572 </varlistentry>
573
574 <varlistentry id="ipptool">
575 <term><command>ipptool</command></term>
576 <listitem>
577 <para>
578 sends IPP requests to the specified URI and tests
579 and/or displays the results
580 </para>
581 <indexterm zone="cups ipptool">
582 <primary sortas="b-ipptool">ipptool</primary>
583 </indexterm>
584 </listitem>
585 </varlistentry>
586
587 <varlistentry id="lp-cups">
588 <term><command>lp</command></term>
589 <listitem>
590 <para>
591 submits files for printing or alters a pending job
592 </para>
593 <indexterm zone="cups lp-cups">
594 <primary sortas="b-lp">lp</primary>
595 </indexterm>
596 </listitem>
597 </varlistentry>
598
599 <varlistentry id="lpadmin">
600 <term><command>lpadmin</command></term>
601 <listitem>
602 <para>
603 configures printer and class queues provided by
604 <application>Cups</application>
605 </para>
606 <indexterm zone="cups lpadmin">
607 <primary sortas="b-lpadmin">lpadmin</primary>
608 </indexterm>
609 </listitem>
610 </varlistentry>
611
612 <varlistentry id="lpc-cups">
613 <term><command>lpc</command></term>
614 <listitem>
615 <para>
616 provides limited control over printer and class queues
617 provided by <application>Cups</application>
618 </para>
619 <indexterm zone="cups lpc-cups">
620 <primary sortas="b-lpc">lpc</primary>
621 </indexterm>
622 </listitem>
623 </varlistentry>
624
625 <varlistentry id="lpinfo">
626 <term><command>lpinfo</command></term>
627 <listitem>
628 <para>
629 lists the available devices or drivers known to the
630 <application>Cups</application> server
631 </para>
632 <indexterm zone="cups lpinfo">
633 <primary sortas="b-lpinfo">lpinfo</primary>
634 </indexterm>
635 </listitem>
636 </varlistentry>
637
638 <varlistentry id="lpmove">
639 <term><command>lpmove</command></term>
640 <listitem>
641 <para>
642 moves the specified job to a new destination
643 </para>
644 <indexterm zone="cups lpmove">
645 <primary sortas="b-lpmove">lpmove</primary>
646 </indexterm>
647 </listitem>
648 </varlistentry>
649
650 <varlistentry id="lpoptions">
651 <term><command>lpoptions</command></term>
652 <listitem>
653 <para>
654 displays or sets printer options and defaults
655 </para>
656 <indexterm zone="cups lpoptions">
657 <primary sortas="b-lpoptions">lpoptions</primary>
658 </indexterm>
659 </listitem>
660 </varlistentry>
661
662 <varlistentry id="lpq-cups">
663 <term><command>lpq</command></term>
664 <listitem>
665 <para>
666 shows the current print queue status on the named printer
667 </para>
668 <indexterm zone="cups lpq-cups">
669 <primary sortas="b-lpq">lpq</primary>
670 </indexterm>
671 </listitem>
672 </varlistentry>
673
674 <varlistentry id="lpr-cups">
675 <term><command>lpr</command></term>
676 <listitem>
677 <para>
678 submits files for printing
679 </para>
680 <indexterm zone="cups lpr-cups">
681 <primary sortas="b-lpr">lpr</primary>
682 </indexterm>
683 </listitem>
684 </varlistentry>
685
686 <varlistentry id="lprm-cups">
687 <term><command>lprm</command></term>
688 <listitem>
689 <para>
690 cancels print jobs that have been queued for printing
691 </para>
692 <indexterm zone="cups lprm-cups">
693 <primary sortas="b-lprm">lprm</primary>
694 </indexterm>
695 </listitem>
696 </varlistentry>
697
698 <varlistentry id="lpstat-cups">
699 <term><command>lpstat</command></term>
700 <listitem>
701 <para>
702 displays status information about the current classes, jobs,
703 and printers
704 </para>
705 <indexterm zone="cups lpstat-cups">
706 <primary sortas="b-lpstat">lpstat</primary>
707 </indexterm>
708 </listitem>
709 </varlistentry>
710
711 <varlistentry id="ppdc">
712 <term><command>ppdc</command></term>
713 <listitem>
714 <para>
715 compiles PPDC source files into one or more PPD files
716 </para>
717 <indexterm zone="cups ppdc">
718 <primary sortas="b-ppdc">ppdc</primary>
719 </indexterm>
720 </listitem>
721 </varlistentry>
722
723 <varlistentry id="ppdhtml">
724 <term><command>ppdhtml</command></term>
725 <listitem>
726 <para>
727 reads a driver information file and produces a HTML summary
728 page that lists all of the drivers in a file and the
729 supported options
730 </para>
731 <indexterm zone="cups ppdhtml">
732 <primary sortas="b-ppdhtml">ppdhtml</primary>
733 </indexterm>
734 </listitem>
735 </varlistentry>
736
737 <varlistentry id="ppdi">
738 <term><command>ppdi</command></term>
739 <listitem>
740 <para>
741 imports one or more PPD files into a PPD compiler source file
742 </para>
743 <indexterm zone="cups ppdi">
744 <primary sortas="b-ppdi">ppdi</primary>
745 </indexterm>
746 </listitem>
747 </varlistentry>
748
749 <varlistentry id="ppdmerge">
750 <term><command>ppdmerge</command></term>
751 <listitem>
752 <para>
753 merges two or more PPD files into a single, multi-language
754 PPD file
755 </para>
756 <indexterm zone="cups ppdmerge">
757 <primary sortas="b-ppdmerge">ppdmerge</primary>
758 </indexterm>
759 </listitem>
760 </varlistentry>
761
762 <varlistentry id="ppdpo">
763 <term><command>ppdpo</command></term>
764 <listitem>
765 <para>
766 extracts UI strings from PPDC source files and
767 updates either a GNU gettext or Mac OS X strings
768 format message catalog source file for translation
769 </para>
770 <indexterm zone="cups ppdpo">
771 <primary sortas="b-ppdpo">ppdpo</primary>
772 </indexterm>
773 </listitem>
774 </varlistentry>
775
776 <varlistentry id="libcups">
777 <term><filename class="libraryfile">libcups.so</filename></term>
778 <listitem>
779 <para>
780 contains the <application>Cups</application> API functions
781 </para>
782 <indexterm zone="cups libcups">
783 <primary sortas="c-libcups">libcups.so</primary>
784 </indexterm>
785 </listitem>
786 </varlistentry>
787
788 </variablelist>
789
790 </sect2>
791
792</sect1>
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